imo, old reinforce would have been fine with the added flanking rule.
1.0 its main issue was it was dang near impossible to get around so you HAD to overpower it, so 2die attacks sucked. Now you can flank it and not give a crap.
But considering the Firespray has it, even if its red, and Imps have a crew that gives it if damaged for free (stress cost i guess), reverting to 1.0 where it could negate the entire attack is probably a bad idea.