Really the whole thing where Burke says they make atmos processors now could mean that before Weyland got another company to do that, like Verizon and the Davids, but since ALIEN happened, they're doing it alone.
The getting into terraforming can also be read that they're pushing that angle of the company more now, whilst dropping other things, basically seeing that they make the most money with the world-building and concentrating on that.
Also, as I have written before, for products like the flame-thrower, this is like Weyland's Golden Era, the ALIEN days with the W-Y merger shows a company 'not like it was when the old man was still running it' so to speak. Cheaper, crappier products are doled out for a quick and easy buck, the big W-Y money comes in from the 'Building Better Worlds'.