My thoughts about it at the time were that people who choose to use IE at the time don't really think about their choices much and just go with what is given to them.
If you have paid attention to the past 10 years of browsers wars (from when FF 1.0 hit the market on) and the lawsuits in the 90's against the very company which gave Internet Explorer (as we all know is M$FT), you will see this trend to hold up true. People (buyers) tend to not invest in new things when "Experts" pre-package a set of tools together when the buyers just buy and not look deep into maximizing their purchases. The majority of the buyers just don't care. They hope someone else will think for them on set concept. This goes not just for computers, but also for the medical field, food industry, or anything else where it is "too complected" for set people to really give a care. It is a shame, but Society prides on people being an expert in one set thing and not care about the rest of the world outside of expecting others to know everything about it all. (ie: expecting a sales clerk @ your local Walmart or equivalent doesn't know enough to decide for you on the purchases you make @ set store, they are overworked and under paid to care).
Those who take the time to investigate in such products (ie: Netscape, FF, Chrome, Safari, etc), they are more likely to display a well informed and well organized letter of complaint towards the lack of development towards their browser over others. When I develop websites and web tools for the company I work for, I do all the functionality testing in my browser of choice (non IE version whatever) and than worry about ascetics in IE due to the fact that the majority of my users use IE. It is the IT departments request that everyone uses IE, especially for working with the tools IT gives everyone. If you are a business catering to the audience at large (populous), it makes sense to worry about all browsers or posting on your site that you design for set browser(s), but if you are internal coder, you or your department can set the standard at what will be accessed and used (like my department in my company).
If anyone has points, Mod up this parent comment by suso.