I don't agree with that. This will only happen if you continually have mistakes made, which I don't think happens. Most plays don't have something controversial in them. On a typical 3 yard run, you don't have to worry about things like offside, pass interference, unnecessary roughness, etc. I don't think the time factor would be that significant if applied. But even if that is the case, you could allow everything to be reviewable in the final 2 mins of each half, for example. There are ways around it. Not to mention that there are multiple ways for the NFL to shorten games if they think this would be that big of a deal
This rule is for the league to (only) intervene in the most dire circumstances (whether booth review or coach challenge).
What is considered dire circumstances and to whom? Teams are losing games [example: Chiefs Sunday]. Is that not considered dire? There are several more than just this one that have happened this year already. I think the whole situation has become dire,