Its easy to focus on a small club v a big club when it comes to an FA Cup replay but the simple fact is that certainly in the qualifying rounds clubs actually make a loss playing in the FA Cup. That is once travel costs , stewards , overnight if applicable (costs which would double if there is a replay) match officials, flood lighting , VAT, et then there is often little left
I personally think that alongside the removal of the replays it would possibly have been a bit more attractive if the rule was reversed whereby clubs were forbidden ,save on safety issues ,to switch grounds
What we have seen is very few PL clubs will take the FA Cup seriously till they get the say the quarters it’s a tournament that has seriously been eroded that’s sad but I personally think the problem lies down to international breaks and for me certainly for the third / fourth and possibly 5th rounds they could be played in those breaks and yes I know clubs will have players on international duty but squads including Utd & Chelsea but it wouldn’t have be interesting to see how things played out