I don't think need internal leak.
If you see how Aftershock build is their build quality are rubbish.
Whatever is cheap they will use for example case fan.
OEM is Tecware which is rubbish fan, don't last long and can rattle.
Yet they use which mainly for bling bling effect.
CPU cooler wise this one is a good question how they decide.
Some build give ID-Cooling CPU cooler slap with their logo
while some use stock cooler.
Both Intel and AMD stock cooler are not good for gaming.
Stock cooler won't be able to cool the CPU properly
thus affecting turbo performance.
Don't tell me they don't know got $30 CPU Cooler in the market?
Or because got OEM/Manufacturer logo so cannot use?
Seriously either too focus on branding or Aftershock builders have no knowledge at all.
Whatever the boss/lead ask them to follow they just follow.