Yes. I referenced that situation, but your detailed explanation was much better.To add on to what Mach said, there are other problems to backloaded contracts. Let me give an example.
Let's say we add a star WR at 4 years and 60 million, and the contracted is constructed like this. A 16M dollar signing bonus with annual salaries of 1M (to facilitate getting around the cap), and then 12m, 15m, and 16M over the next three years. The salary cap impact would be...
5m the first year
16M the second
19M the third
and 20 the fourth
So far, so good... right?
What if the player decides that he doesn't like it in Miami... or X-like, decides that he needs more money now, and gives you a trade me tantrum.
Then if you trade/cut him. The remaining 12 million dollar cap charge hits you immediately. This cripples your chance to continue competing financially. We saw this with Wentz and Goff, and it would happen to Houston if they move Watson. THIS is the reason that high signing bonus players become untradeable without incurring HUGE cap burdens.
As an interesting aside, I was reading something the other day that pointed out that any incentive bonuses are added to the year end cap tally, and then recalculated. Our player's incentives added a few million after the fact.
I just found it interesting.