Maybe so if you can know by looking and what to look for but wasn't aware that alignment could be an issue (until now). Guessing if you suspected that was a problem channel locks might work if you were using it while operating the pedals with the bike in a stand but the tool involves removing the derailleur entirely to true the hanger. Guessing too that alignment was probably less of an issue w/ the five-speed cogs of yesteryear.

AI- Based on available information, Shimano 12-speed road cassettes, including those in the 105 groupset, feature a cog spacing of approximately 1.8 mm