TPM, TAM, and PM have nothing to do with this. A technical lead is usually a semi-formal role for an IC or a TLM that implies that they are leading a project with other folks working on it. There are situations where the Mid, Senior, or Staff IC could all be a technical lead of various sized projects.

> Does the change mean the most competent solution architect who has successfully designed and implemented many complex systems from scratch is capped in salary package because they're not doing the important job of demanding those around them fill out TPS reports all day?

No.