This is still pretty far-fetched from your original assertion of saying as his opinion that Finland should never do or say anything that could be construed as being antagonistic to Russia. If that would be the case, he would not assess the situation against what Kremlin says the situation is, would he?
Saying that he doesn't support stronger and more permanent NATO bases in Baltic countries is a very different thing. Finland still has politicians and public figures who think that the best way would be the official line from 30-40 years ago which indeed included "pragmatic" stance towards Soviet Union but Tuomioja in his old days is now much more honest and direct than before, and Finland is highly divided when it comes to NATO so his comment is perfectly reasonable coming from person (and party) who is opposed to applying for NATO membership.
For comparison, look at the comments from Paavo Väyrynen (also former foreign minister).