WordPress Multisite vs separate managed installs

WordPress Multisite vs separate managed installs
Heard this week: agencies running a hundred near-identical sites keep reaching for Multisite and regretting it.
— Multisite is one update, one network, and one blast radius when a plugin misbehaves
— Separate managed installs cost more and update slower but contain failures and migrate cleanly
A source tells us the hosts have opinions baked in: some price Multisite punishingly, others sell network-friendly plans precisely because they keep you locked in. Word is the shops that scaled past 200 sites abandoned Multisite for templated single installs, because one bad update across a network is a portfolio-wide outage.
Unconfirmed, but a major host is reportedly deprioritizing Multisite support entirely.
Watch this: per-site isolation beats network convenience once the stakes are real.