I agree, that bike shop needs to re-think its approach. What a waste.
Unless, of course, there is a practical reason for hack sawing a frame set!
As long as one does so, to achieve the aerodynamic saddle position, featured on this customized Raleigh, then, the hacksaw to the frame set thing, is just fine with me. Note also the backward "cold set" fork set that helps to quicken handling, on this finely crafted, and well thought out, racer.
And, then there is the really stupid part, when the owner tried to disguise the nature of the machine, with traditional recreation handlebar and brake lever positioning. Sadly, the rider's arm pits tended to trap air, often times lifting the front wheel off of the ground at speeds exceeding 50 to 55 mph.
Anyway, just wanted to offer up some defense for the Bicycle Hacksaw Mechanic presented in the OP.
Of course, having a competent welder on hand, as did the creator of the wind defying Raleigh "Grand Prix", is an absolute must.
Only in Canada, eh!-)