[rogator]

"Hand-holding and glass chalices does not render a Mass illicit."

The last I heard these practices were not authorized by church law.
If they are not approved by church law, it seems to stand to reason that they are illicit.

[sinkspur]

I've never read anywhere that hand-holding during the Our Father is illicit.

The use of glass cups for distribution of the Precious Blood is perfectly licit (all the GIRM says is the use of a non-porous substance). The principal chalice is to be of precious metal.