Drain holes in alu doors - always required?

[SBMS]

We had two sets of raynaers aluminium sliding doors in our current self build. Moving onto our second, there’s one thing that always bothered me about the way they were installed, and I want to avoid it if I can on our next.  
 

It’s a double track and The fitter drilled drainage holes in the base of the track where the rubber gasket bit is, which go through to weep holes on the outside. The internal track does indeed sometimes get water collecting and it must drain out of these holes. 
 

however I also see them as a terrible way to leak airtightness… is this a peculiarity of this door design? Do all aluminium doors have to have the same principle of drainage holes from inside to out therefore an unavoidable airtightness breach?  Photo to follow 

[SBMS]

Done by best on photo attached

 

[RobLe]

I think there should be an air gap all the way around the double glazing seal(the one built into the sealed units) and that air gap should vent outside at the lowest point.  It’s both to vent liquid water that gets in, and to ensure that you don’t get condensation on the dg seal that will eventually make the dg unit fail.
 It’s true for all dg windows as far as I know.

[SBMS]

1 minute ago, RobLe said:

I think there should be an air gap all the way around the double glazing seal(the one built into the sealed units) and that air gap should vent outside at the lowest point.  It’s both to vent liquid water that gets in, and to ensure that you don’t get condensation on the dg seal that will eventually make the dg unit fail.
 It’s true for all dg windows as far as I know.

I’ll be honest, I’m not sure I understand what you mean there! Are you saying the drain holes are unnecessary?

[RobLe]

I think at least one drain hole is needed to vent to outdoor air that is usually lower absolute humidity than indoor air.

[SBMS]

4 minutes ago, RobLe said:

I think at least one drain hole is needed to vent to outdoor air that is usually lower absolute humidity than indoor air.

I wonder if this is the same with ‘passivhaus’ certified sliding doors as it seems an

airtightness compromise.