I'm not worrying about it because I know the majority of people will not see any special instructions and won't follow them properly even if they do lol.
The vast majority of EA players are going to take no action other than firing up Steam and letting it do its thing to update to the release version, so this MUST work just fine.
In addition, there will be even more people installing from scratch for the first time, so that MUST work fine too.
Of course, there can always be disasters of one sort or another but honestly, I think you're much better off if you just don't waste any time worrying about it.
