Let's look at where we are now vs pre-season when the Aiyuk talk was dominating.
I was in the "get a top WR1/2" camp back then because JD was an unknown at the NFL level and there was clearly a deficiency in the WFT roster vs the rest of the division (other than maybe NYG). The common sense idea at the time was a top WR is a safety blanket and helps the other guys get open.
But a lot has changed since then. We now know JD is a legit, elite QB with precise passing and the ability to throw receivers open.
When you have a QB like that (think about what Brady did) you can get away with a WR corp that isn't so top-heavy. As long as you have guys with NFL speed and good hands who can run their routes correctly you can throw the ball enough to open up the run game, and then you're a match for anyone (provided your defense is top half of the league, at least).
So they may not even need another WR.