Not so. I would have guessed it was either Feb,Mar,Apr (astronomical) or Mar, Apr, May being the gardeners calendar. But Q2 is Q2. It's not just having to flip the season for the hemisphere.
Quite so, even if a regional dialect. Certainly where Caterpillar operates out of it is common. If we were instead talking about an Australian company that produces barbies then we'd know we're talking about barbecues and not dolls, even where regional dialect only knows Barbie as a doll. Words don't exist in a vacuum. Context is significant.