Everyone isn't using LI and MtM.
This is not a game where 99% of the users are using LI MtM
This is a game where 99% of the WINNING TEAMS are using LI MtM
People ARE TRYING OTHER THINGS....they are NOT working.
Just for giggles, I did a TL search for wondrous (14) for every skill other than stamina. There were just over 100 guys with wondrous passing and every other skill besides SB was 100+ (of course, over 1000 in JS and quite a few for the other inside skills).
There were 7 with wondrous SB, and only one of those had above mediocre OD (respectable).
Now, of course, I don't follow the high level teams or BBB or all that nonsense, so maybe these other people who have built the type of big men with ID/RB/SB and decent outside skills at the expense of IS are all being kept by their teams. I mean, if people have been trying other things enough to drive a sensible man like you to capitalize it, surely they've actually gone so far as to purpose-build players for these strategies. If we look at the LI/M2M, people are using players who are built specifically for this tactic (though as you've pointed out correctly in the past, even guys not built for LI can be effective at it).
I guess if people can just point me to the people who have built multiple guys who have ID and SB at roughly the level of the IS they're facing, plus OD at something around 10, and failed with their 2-3, I can at least see if I can pick up any information from their experiences. If we're talking people taking the typical low SB LI big men and throwing them in a 2-3 zone, though, there's plenty of data on the uselessness of that (unless you're just going for the RB boost because you can't stop them anyhow). ;)