IMHO, that is entirely possible. I think the way it may have worked might have been something like this. They had a board of prospects and certain targets. In round 1 they had hoped one of the top echelon of LT targets might be available, but the last one was drafted before our 2nd pick in round 1, so we went with Austin Jackson--who looks like a great pick! Then they wanted to get another good OL at any position in the 2nd round, and had targeted the Michigan C/G, who was drafted before our pick as were all of the 2nd/3rd tier OL prospects, so by the time the Hunt pick arrived, he was their highest rated player and they saw versatility to play RG or RT--both of which were positions of need eventually, and offering versatility every NFL line needs.
I think you're spot on about Kindley though. From what I can gather, they thought at least one of their targets would be available in rounds 1 and 2, but other NFL teams valued those guys more than the Dolphins staff expected so they chose their fallback options according to their board rankings. Solomon Kindley they expected to go a round earlier, so they hadn't really targeted him, but when he was still available, they jumped at the chance to get him in much the same way we did when Xavien Howard was available in his draft. While the other two picks were pre-gamed to be OL picks, I think the Kindley pick was viewed as one of opportunity.
Since we have had such a tremendous and obvious need along the OL and have had this need for a long time, I don't think they were too concerned with overlap. Every year we have multiple OL injured and need a minimum of 7 OL and coverage at both exterior OT and interior C/G. These were merely gifted athletes with potential as football players. Austin Jackson was the youngest OL in the draft but had been rated as the #1 OL prospect in his high school class so he offered dynamite potential. Robert Hunt was a physical beast with overpowering strength, plus size and wingspan, and potential value because his production (low level and very little pass pro tape) was at the lowest level (in NFL terms) so he might drop in the draft, while having top tier potential athletically. A rebuilding team is an ideal development spot for a guy who just needs to learn to play football. Solomon Kindley represented the opposite of Robert Hunt, because Kindley had proven competent at the highest collegiate level (SEC for multiple years), also had dominant power (for a guard), and already possessed the technique needed to succeed in the NFL. His only real drawbacks were a soft body and the dreaded "slow feet" label that caused him to drop on most teams' boards.
Solomon Kindley's experience, technique, and production at Georgia were major reasons why I predicted he would be the OL to watch instead of Robert Hunt. I also predicted Austin Jackson would start, but that was because we simply had nobody else. Jackson has exceeded even my rookie expectations and proven to be the gem of our draft! As for Kindley, he is showing the sort of production one might expect from an exemplary SEC player who had proven production across multiple years. Robert Hunt is not a bust ... he is an investment. When you draft a raw athlete without the technique or experience against top competition, and ask him to jump waaaaaaay up to NFL competition, you need to allow enough time for him to develop and step up in competition. That happens over years, not overnight, so we need to cut him some slack as he learns.