I also wondered about this. Seems like it has to be taken into account.
Still, the article says that glass and metal are already put together with adhesive. Unless the adhesive is stretchy, it must mean that, within certain limits, it's already OK. Presumably it gets worse as the length increases since expansion is cumulative, which suggests that smaller lengths are OK.
Also, there are probably ways you can design around it like creating gaps in the metal or shaping it so that the metal can bend.
Still, the article says that glass and metal are already put together with adhesive. Unless the adhesive is stretchy, it must mean that, within certain limits, it's already OK. Presumably it gets worse as the length increases since expansion is cumulative, which suggests that smaller lengths are OK.
Also, there are probably ways you can design around it like creating gaps in the metal or shaping it so that the metal can bend.