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Minor typo in the title: "10Mb" would be 10 Megabits.

They really mean "10 MB" as in 10 Megabytes.

Megabytes (1000^2, MB) or mebibytes (1024^2, MiB)?

They used MB and not MiB on the homepage.

Its pretty clear from context what it means

It is fairly clear however it is a small nitpick that has some significant consequences when it comes up as one is an 8th the size of the other.

Megabits is often used in the context of RAM.

At the hardware (RAM chip) level, yes. At the software level, basically never.