I actually largely agree here, though one thing to note is a lot of digital stuff has a tendency to be suddenly snatched away, but that's a whole other can of worms.
I actually disagree with
@mamba that the main problem microtransactions create is financial harm. Gambling-style ones do and should be absolutely condemned out of hand, but I think unless WotC completely lose their mind, those are unlikely. That said, if they do that with say, digital minis, and if so, obviously that'd be pretty contemptible (especially as they're almost always non-trade-able unlike physical stuff). But I think regulation/legislation/potential bans in European and Asian countries will probably keep them away from that.
The real harm of microtransaction-heavy platforms is that they tend to, over time, increasingly attempt to funnel users into purchasing microtransactions, to the point of reshaping functionality and systems to encourage that. As this is a novel product it's impossible to say exactly what form this would take, but it might, for example, involve locking mechanical content behind purchasing microtransaction figurines (or force-bundling them or w/e).