The current Broadcom (Avago) is literally not the Broadcom that RPi came from. Not that old-Broadcom was great, but...

RPi doesn't exist due to Broadcom. It exists despite Broadcom.

Using RPis can be a huge PITA, if you'd like to do something a bit more complex with the hardware. HDMI, the video decoders are all behind closed doors with blobs on top of blobs and NDAs.

RPi SoCs are some of the weirdest out there. It boots from the GPU ffs.

Yeah Broadcom had a load of unsellable SOCs they needed to off load