your 1st guy's ' righter ' than the 2nd impo,,, how's the 2nd guy treating the rebar in the footer ? ? ? breaking a footer'd be last on my list while asking a footer to ' bridge ' 4" is nuttin',,, just msohfo, tho,,, its still your house !
just because #1 chose that method doesn't qualify him as bldr of the yr, tho,,, NO drain tile - apron store & 4" pvc flexible pipe w/o slots/holes
we pull out drainage systems all the time that've been installed w/o filter fabric OR enough crush'd stone surround,,, we'll even find pvc slott'd pipe fill'd w/silt because the oroginal system includ'd pipe w/'sock filter',,, when it comes to waterproofing systems, saving $ isn't the best idea,,, how often do you want to replace it ? ? ? we install standpipes w/screw-off tops so the h/o can insert a garden hose & flush the system periodically,,, better safe than sorry,,, as a result, some systems we install'd 30yrs ago still work fine.
don't shy from asking anyone - in the end, its YOUR home - good luck !