I agree. To me, it made more sense last year. To trade for him this year would mean you'd have to include Ajax in the deal or cut ties with Armstead because you can't pay all 3 and have one guy sit, nor would i expect any one of them be ok sitting.
In a perfect world, you'd put Wirfs back to his best position RT (and Tua's blindside) and Ajax at LT. But Armstead's restructured deal has a significant dead cap in 2024 and several additional void years. Plus, they just spent a draft pick on Paul. That's a lot of capital investment before taking into account what it would take to trade for Wirfs and pay him long-term.