Do space marines have a Vindicator problem?

I am notcing that vindicators (2-3) are ubiquitous across Space Marine competitive lists. I do not know if this is a recent phenomenon or something that has been true across many editions.

However, my understanding of the Games Workshop strategy is to phase out loyalist Rhino-chassis units (Rhino, Razorback, Vindicator, Whirlwind) in favor of Gladiator/Impulsor chassis models. Without Vindicators, Space Marines really lack a durable piece that can flex into hull-spam and elite units.

If they were to drop Vindicators to legends in 11th, what could possibly replace their role?