Is this a "just suck it up" situation? Or is frustration warranted?

My husband and I have been in the same apartment coming up two years in about two weeks. We will be moving out by May 31st.
We have been great tenents, and get along quite well with our landlord.
My landlord’s mother and brother live in the apartment below us (we live in a duplex).
The brother, who is in his mid 40s, was our handyman.
In our lease, it specifies that we do not have to do lawn care, snow removal, or take the trash out. It says any repairs below $50 we have to pay for ourselves, but anything more our landlord will cover. The brother did all sorts of little jobs, such as changing all the light bulbs, unclogging the sink in the basement, taking the trash out…
My husband and I kept the hallways tidy, because in our lease it states to keep the communal area neat.
So, the brother has moved out. We actually did not know he was even moving out, and were never notified. All of a sudden we’ve got trash not getting picked up, ligh bulbs never changed, and the sink backing up.
We realize pretty quickly that he has officially moved out.
My landlord emails me about a month after this, telling my husband and I that we are to be the ones taking the trash in and out, and fixing the sink.
Now, my husband usually doesn’t have opinions either way, but he’s pretty upset. He thinks this is a violation of our lease. Yes, it’s easy to take the trash out, but she wants us to take care of our neighbors trash as well.
My landlord’s mother has a live in nurse, and lately they’ve had upwards of 15 trash bags! I’m not sure what’s going on, I guess they’re just clearing out the garage.
All my landlord says is “I appreciate your help with this” at the end of her emails.
Are we justified in being upset about this? I know it’s a simple task to take the trash out to the curb, but when it specifically says in your lease that it will be taken care of, I don’t see how the landlord can go back on that. And we’ve never been designated a specific trash can, so we all use the same ones, so no matter what, we’ll have to take care of our neighbors trash.

We’re only here a couple more weeks, so I guess we’ll have to just suck it up. I have no clue how to approach my landlord about it either way.