First one sounds like a standard go-around. Either the flight crew weren't happy with the approach or they were getting too close to the aircraft in front. Going around under those circumstances is normally safer than continuing.
As for the second, better to be o the ground wishing you were in the air than vice versa.
There are certain airlines I'd refuse to fly, and indeed when booking a flight to the area last week I point blank refused the cheapest offering because they were on that list.