The only useful advice in there is to know the escape routes from your room, the rest sounds like it would have a net negative effect for the average person. Choosing your hotel room based on maneuverability in the event of an attack is not only completely pointless if you don't know how to maneuver in the event of an attack, but more importantly, for the average person, running those sorts of scenarios in your head…
What's the downside and carrying a doorstop with you and using it from the inside? I would love to hear. You sound like the kind of person who doesn't prepare because "oh you know it's so unlikely". In other words, the kind of person who accidents happen to.
You're not only making it harder for bad guys to enter your room, but also for good guys, and for yourself to exit, in case any emergencies happen within your room.
It's not even clear that the benefits of blocking are net positive in all situations (depending on your individual characteristics and the environment, eg if you have a chronic illness and are in a relatively safe location), but the more general point of the post was that you should do a cost-benefit analysis (ie is the risk reduction worth the effort?), not look only at the benefits in terms of risk reduction.