Like I posted, nothing terribly wrong with the Tikka manufacturing process, they, IMO, are overcharging the public on quality and craftsmanship by selling an inexpensively made gun at a higher relative price. If they wanted to save weight, they could have used alum. rather than plastic, so cost (to themselves) was likely the only reason for it. If one is aware of the facts and chooses to buy a Tikka, nothing wrong with that.
I do like the fact that Tikka "seems" to have more left hand models available, at least in Canada, which I think is a plus.
I have several firearms from the days when there was no plastic on guns or cars. I have no visible issues with alum./steel contact either, although I do understand the electrochemical process.
I too have firearms with large amounts of alum. in steel contact. Such alum. receivers, trigger guards, etc.