Blinky, I believe it IS wrong for someone’s teacher (whom that person admires and looks up to as a real role model) to subtly encourage a student to think that life is all rosy in a lifestyle that for most people is financially challenging. If what you posted was accurate, then IMO, your teacher did you a disservice by planting an unrealistic idea in the minds of her students, who look at what she says as almost kodesh kodoshim.
People who have influence over us, also have a very real achrayus not to present a one-sided view of such an issue. Kollel life is very hard for someone who does not have a financial support group. Anyone who asserts otherwise and says, “somehow the money is always there), is either being supported without their knowledge, or really blind to reality. Money is either there or it is not. Hashem does not usually send it in an anonymous envelope to us each month. And I know plenty of ehrliche kollel families whose own parents struggle mightily to meet their own expenses each month, who are NOT making ends meet and have to go for all kinds of handouts fromt he community, which is very embarrassing for them AND their families. AND still their husbands are not working. That’s just wrong. Hashem did not tell us to sit and learn while no bread is on the table. LEarning can be done every single day WHILE working to support one’s wife and children. My son learns b’chavrusah every day, and also holds down a p/t job and grad school.