That's my feeling, too.
I said it elsewhere but IMO there are probably 4-5 teams picking ahead of us who could all conceivably view WR as a "priority" target for them. For me, that's Atlanta, Washington, New Orleans, Philly, and maybe someone like the Jets (and you could probably make a case for the Giants and Texans too, though they might have bigger needs first). I don't know that all 4-5 (or more) will guaranteed go WR, but it seems like at the moment there are about 5ish players who are generally viewed as the consensus top 5 WRs in the draft: Wilson, London, Olave, Burks, and probably Williams (though I don't see him as a first-choice option for us at 22 simply due to availability. Maybe if we wanted to double-dip and he was available at 28 after taking one of the others at 22, I guess). And then I think you have a couple of guys like Dotson or Watson who have been "risers" and are probably viewed as on the fringe of that group, but beyond that point there aren't really many players with first-round value, IMO.
And for me if we don't take WR at 22, there's a few more teams who could certainly stand to take a WR between there and 28: Arizona, Dallas (though to be fair I believe Jerry Jones just said something yesterday to the effect of "We'll take IOL unless a CeeDee Lamb or Micah Parsons are available there), Buffalo, Tennessee, and perhaps Tampa. All that to say that if we don't take a WR at 22 it's not entirely inconceivable that all of the "First-round graded" WRs are off the board by the time we get to 28.
At that point then it probably makes most sense to trade down into a higher second round pick because again there's a lot of WR-needy teams between 28 and 53 (Detroit, Jets, Giants, Houston, Chicago, Indy, Atlanta, Cleveland, Washington, New Orleans, KC, Philly, etc - with a number of them having multiple picks in that span). So if we pass at 22 and the "first round" guys are gone at 28 and we don't trade down into a higher 2nd-rd pick then you run the risk of missing out on a lot of the "tier 2" guys, too.
All that to say that like you said - unless we really make some moves in FA or pull off a big trade I think it would pretty much be suicidal to not take a WR in the first, and for me I'd be much more comfortable with that selection coming at 22 rather than 28. I understand the idea of taking the best player available - and it may be that there is a good DL or OL prospect who falls that far - but at some point I think need has to outweigh that - and for us our need at WR is far, FAR greater (IMO) than at DL or OL or anywhere else. So much so that I'd argue that there's more value for us in taking a WR with a mid-to-late 1st-rd grade at 22 than there would be at taking a DL or OL with a higher mid-1st rd grade in that spot, really.