Hi Luis,
First, I agree with you that this is not the kins of help one should expect from an ATC - no matter his rank.
I think however that I know what has upset this guy so much: your route looks like a VFR route (and definitely not like a correct IFR route) while the flight rules are marked "IFR".
As TWR & APP myself, in this case I would of course assume the pilot has forgot to change the flight rules, while (I guess) your TWR preferred to assume you have a badly built route. Maybe he did not notice your aircraft type either

And of course, whatever he found wrong in your FP, he should point it out inthe first place.
I admit text comm can be very frustrating for ATC, especially in hight traffic; sometimes this can lead to somewhat lower priority in comm, but there is no reason for not being polite and cooperative.
When dealing with "text only" I try indeed to reduce comm amount to the minimum, but when dealing with small FP problems this means being more tolerant, not giving riddles to pilots (which may prove I am a worse ATC than you Matt

).
About the ATC mistake Matt encountered at Schipol, I would say this is not what matters. We all make mistakes (I do, anyway, both as ATC and pilot) and I think we should "friendly" correct one another - and accept being corrected. What is definitely bad (and sad) is running into someone eager to demonstrate you are dumber than he is.
Once I had a pilot with a FP route obviously wrong (in real world, according to the charts, he was to exit TMA from a fix that is entry-only). I offered him help to corrrect but he replied he thinks the route is OK as it came from one of the major route databases. I did not believe him, but rather then argue I let him fly according to his plan. The day after I discovered he was wright, the route database provides indeed an incorrect route.
[Edit] This is a typo, I meant he was "right" not one of the Wright brothers. I am not THAT old (and I challenge anyone to pretend he provided ATC service for the Wrights).
And I cannot end without more bad news. You think you had problems with this guy because he had a too high rank, but be assured beginners can be as dangerous (it takes experience to understand you may be wrong yourself, not only all the others).
Cheers
Andrei